8. Why are the standard reagents used in neutralization titrations are generally strong acids and strong bases rather than weak acids and weak bases?
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8. Why are the standard reagents used in
neutralization titrations are generally strong
acids and strong bases rather than weak acids
and weak bases?
Step by step
Solved in 3 steps
- What is the importance of having a titration of about pH 10 in compleximetric titration?Why are the standard reagents used in neutralization titrations generally strong acids and bases ratherthan weak acids and bases? Explain.8-What is the advantage of Fajans method over Volhard method for chloride ion titration,Please explain?
- Why do you think 7 is the pH of the solution at the equivalence point of this acid-base titration?Phenolphthalein starts to turn pink at a pH just over 8. Why is it used to monitor the titration of a weak acid with a strong base?The back titration of HCl with NaOh in the Kjeldahl Method ensures thr reaction of NH3 and HCl is stoochiometric TRUE OR FALSE
- Why do we use a solid acid as a primary standard? During the standardization of NaOH, Shane didn’t notice that there was an air bubble in the tip of the buret when they started their rough titration. The bubble went away during the rough titration and Shane continued with two fine titrations. Does this affect the calculated concentrations of NaOH? Why or why not?5) A student starts a titration without phenolphthalein in the Erlenmeyer flask. The student realizes the mistake and adds the phenolphthalein during the titration. Once the phenolphthalein is added, the solution in the Erlenmeyer flask remains colorlessCan the results of this titration be used? Concisely explain .1.Why is more than one accurate titration carried out? 2.Explain why hydrochloric acid is not used as a primary standard. 3.Can any of the following be used as primary standards: NaOH, H2SO4, HNO3? Explain your answer.
- In an acid-base titration, why is the volume of a titrant on the last trial much lower?why is it not always necessary to refill the buret after every titration?7. What specific chemicals are used to identify each of the methods? (Volhard's Method, Fajan's Method. and Mohr's Method) 8. What color reactions are expected at the end of the equivalence point? 9. How does acid-base titration differ from precipitation titration?